Rotary soot cleaner for boilers



Dem 9, 1930- F. w. LlNAKER ET Al. 1,784,491

ROTARY SOOT CLEANER FOR BOILERS Filed oct'. 2o, 192e 5 sheets-sheet 1 i@Il Q By Attorneys AxDec. 9, 1930. F. w. LINAKER E1' AL 1,784,491.

ROTARY .SOOT CLEANER FOR BOILERS Filed oct. 2.o, 1926 5 'sheets-sheetINVENTORS B y Attorneys,

De. 9, 1930. F. `w. LINAKER ET AL 1,784,491

ROTARY SOT CLEANER FOR BOILERS Filedoct. 20, 192e;` 5 sheets-sheet 3INVENTORS:

I By Attorneys,

Dec. 9, 1930. F. w. LINAKER E'r Al. "11;784491 ROTARY- SCOT CLEANER FORBOILER-S 5 Sheets-Sheet 4 Filed Oct. 20, `1926 Dg; 1930. F. w. LlNAKERET AL 1,784,491

ROTARYV SOOT CLEANER FOR BOILERS Filed bet. 2o, 192e 5 sheets-sheet 5Fay f5,

Y ,f *A M- Wl B Attorneys, v

Patented Dec. 9, 1930 UNITED STATES PATeNTroi-Fl-cr; l

FREDERICK W. LINAKEB. AND THEODORE M. yIIKBRTITBLAOIK, OF, DU' BOES,PENNSYLVANIA `iternnv secr CLEANER non Boinnns `Application meaYomini-.1r 2o, 1926. ,serial No., 143,027.

' V.This application is in part a continuation of our` application No.631,6441iled April 12, 1923, Patent No. 1,748,387. ltf'also in partpresents certain new matter of inven- 5 tion which is not disclosed insaid application.

This invention relates to soot cleaners or` blowers for waterrtubeboilers of the type having a rotary or oscillatory tubular unit orelement into which steam (or other cleaning i fluid) is admitted througha suitable valve,'

and from which itissues in jets `from nozzles provided at intervals inthe side of such tubular element. a f

It also relates to such soot blowers wherein l the steam is admitted vtothe rotary element from astationary head in vwhich the rotary elementturns, the valve for controlling the flow being located within suchhead.

Heretofore in suchsoot blowers Vthe tubu- 20 lar element or blower unithas been rotated and has been provided with means whereby its rotationopens and closes the valve. Ac-

cording to the present invention thel means for "applying rotativemotion engages the valve,

so that its first movement Vopens thevalve,

whereupon its continued movement carries the soot blower or element withit throughout a prescribed arc of rotation, the vvalve being closed uponthe application of power to turn, it in the contrary direction, wherebythe rotary element is turned baclr lto its `original position; the valvebeing closed at either the ieginning orend of this return movement,

according to the specificV mechanism provid- 5 ed. i

-,'lwo-embodiments ofthe invention are il'-A ment the valve is firstclosed and afterwardcarries the element with it infitsfrotation back tothe `initialy position."

to V19` of our aforesaid application No.

Referring` to theiraccompanying draw-V ingsf-V Figure 1` isa vverticallongitudinal section in avplane parallel withthe aXis of` rotationoffthe blower element.

Fig 2 isan end elevation viewed from the'left in Fig. '1 and partlybroken away.

Figs. 3, 4 and 5 are transverse sections in the planes of the linef inFig. A1, showing` the valve and blower element in threedifferentpositions. ff Figs. 6 and 7 Y are elevations viewed fromopposite sides of the valve and valve seat members, which are shown insection in Fig. 1. i f Y ThefiGuresta'lren from our aforesaid priorapplication are thefollowing:

Fig. 8 'is' a' sectional elevation on the same plane-as' Fig. 1. l

, Fig. 9` isa transverse section 'on the line 9 iIi'FigzS.-

Figs.` 10 and 11 are line 10-10 ,f Fig.'18, the 1 locking `member orpawl being shown in different working posi- Y y l Y 7 in plan.

13 isja detached view of the valve disk.`

Fig. 14 is a' view similar to Fig. 9, showing f the valveparts-infpositionvwhere theports are open.

- Fig. 15; is -a fragmentarywiew of a boiler showingthe cleaningelement, and its operating means, applied-thereto.` Y Y 'Referring toFigs. `1 to7, inclusive, 10-is the rotary element or blower unit, whichas usualpasses freely through 'a bushingl 12 set inthe boiler wallorsetting 14, with the usual appliances 1 forclosing the clearance spacearound theelenient. `Theelement,I as usuah Vconsists ofv a' portion-10which projects Within'the boiler and'l has the usual steam jet nozzlesand is united by a collar or union 11 to the=usual elongated nipple '10which eX- i Y i p tends into the head -16 (being provided with Thesecond embodiment is shown in Figs;V 8 to 15 inclusive (which formedFigs. 1Q.V

a stufiing box This headhas a chamber 17 receiving 'steam (or any othercleaning fluid) from a pipe 18;` Within the chamber y1"("tliei'e isfastened on the end of the nipple sectional views on the l 10 a valveseat member 19 which mayconveniently be screwed upon the threaded end ofthe nipple and held from turning by a key 81; the member 19 has a valveseat 30 Which in this instance is arranged eccentrically to the axis ofrotation. A valve 2l which may close over the valve seat 30 is carriedby a swinging arm 22 which is keyed on the end of a rotary spindle oroperating shaft 23. rlhe outer end of the head 16 is closed by a cap211' suitably fastened to it by capscr'ews or otherwise, and having abracket arm 25 which forms an outer bearing for the Spindle 23. Keyed onthis spindle is a Wheel 33'01" any other suitable meansv by which thisSpindle may be turned. In the particular construction shown, this wheel33 is a gear Wheel which is in mesh with a. pinion 34on'a spindle 35 onwhich is 'keyed a sprocket wheel 36 carrying aV sprocket chain by whichit may be turned to rotate the spindle 23 and thereby operate thevalve-carrying arm 2 2. Q kThe arm 22 is of the shape shown best'inFigs. 3, 4 and 5, having a hub receiving the spindle 23, an annularsocket portion 26 encircling the neck of the valve 21,- and a tailportion 27 which turns backwardand works between two shoulders 28, 29formed on the se'atjmember 19. Thisrseat member is broad-V ened at 31 toform a face upon whichthe valve may slide when turned to thepositlonshown in Fig. 5.V rEhe valve is pressedvagalnst the seat'or the face 31by a'spring`32 which.

reacts against'a cup .37 whichrin turn reacts against an annular face 38formedon-the inner side of the cap 24, so that in any positin ofthe'valve the. spring'a'cts toy press it `against either its seat or theface 31.

It is preferable to attach ,tothehead 16 a casting 39 supporting a ballbea-ring 40. Vfor the blower element;- 1 Y 'In operation, starting fromthelp sition shown in Figs. 1 and Ll, the spindle 23 is lirst turnedinthe' direction ofthe arrow 00;` this swings the valve to the left andopens it,as ,hown in Fig.v 5; during thismovem'entfof the arm and valvethe element and its seat member remain stationary by reason of thefriction generated in the stuiingb'ox 20l and elsewhere. On rea-,chingthe position sho-Wnl in Fig.y 5,Y the tail 27 of the valve arm strikesthe shoulder 28 on the `valves'eat memberand thereafter carries thevalve seat member with it in its rotation through any desired number ofdegrees, accordingto the arc through which in; any giveny position ofthe` element in a` boiler it is desired to cause the `cleaning jets tosweep against the boiler tubes; Thus,

for example, it may turn through an arc 4of about 50 degrees, thisbeingthe movement of the' element fromtheposition shown'ii'i Fig. 5;tothatshovvn in Fig. 3; 'or itimay turn througlrany greater arc thatisdesired, short of va complete' rotation. `-The precise are'. thjroughwhichY it turnsis 'determined by the setting of an adjustable stop 41 onthe wheel 33, which may be setaround to any circumferential position onthis Wheel; when this stop strikes a fixed stop 42 (best shown in backonto' the valve seat and thereby closes the opening, so as toshutofl'steam from the element. The continuedvrotation, after strik-ying shoulder 29, turns boththe valve and element back to they startingpoint, and when this point is reached, the movement is stopped by a stopprojection 113 on the wheel 33, strikmg the fixed stop l2,.as showninFig. 2. n

Thus the opening andclosing of the valve areperformed automatically as anecessary incident to the usual turning of the blower element, which iscommonly accomplished e. by a pendant sprocket chain hanging ,downV fromthe head toa level on the boilerv wall where it is readily reached bythe operator. 'lhe'first movement opens the valve, and the continuedmovement turns the blower elef ment while the steam is blowing through1t; it is `thus turned through its proper arc of travel, and whenstopped kat the end of tlns'arC, theoperator turns it back to itsstarting position, the first part of this re-V turn' movement closingthe valve, soA that during the remainder ofthe return movement the steamis shut olf from the element.

vWhen itl is desi-red to maintain the steam lblowing during the returnrotation of the Yfiguresalsoshow a different Vtype or con-k struction ofvalve and seat member, the valve in this instance being rotary. diskvalve mountedy concentrically lwith the axis of the blowerelement andhaving radial ports which 'in the "open positionare coinlident withsimilar ports in theiseat mem- Coming now to describethe constructionset forth in. Figs. 8 to 15, the reference numerals 10, 12, 14,416, 18and 20 designate the same parts or parts corresponding in function tothose already described with reference to the first embodiment. yThevalve seat member Xed t'o the element 10 is here designated 80, and82designates the rotary disk valve or valve-proper co-operatingtherewith. The seat member 80 carries a bracket 84 in which is pivotallymounted a stem 89, which has a knob and socket'coir recess 96' therein,andthe 'said pawl 86 is` nection 90, with the valve part or disk 82, aspring 92 being insert-ed in said socket for pressing said'disk 82against the valve seat. The valve part 82 (Fig. 18), which is turned bythe element operating means, is provided with a lug 95, which engages arecess 96 in the pawl 86. v`

The turning of the pawl 86 is controlled by an annular guide 98projecting from the inner wall of the head 16 and having' a recess 99therein, permitting turning ofthe pawl 86 in that position of the partswhere they valve is to be closed. A projection 101 on the valve partcoacts with a stop or shoulder 102 on the headv 16 (Fig. 14) to stop themovement of the said valve part 80 in that position where the vpawl 86kis opposite the recess 99,and whereV disengagement of the lug on thevalve part 82 takes place and permits closing of the valve.

A stop 104 on the same part 80 which c arries the stop 101, coactingwitha projection 105 on the valve part 82 stops themovethe ports 29 thereofare completely out of registry with kthe corresponding openings 30 inthe valve part 80, Y

A shoulder 106 onthe valve part 80, coacting with the projection 105 onthe turned valve part 82, is so placed with relation to `the recess 99that contact between the projection 105 and the shoulder 106 is made atthe time the lug 95 is fully engaged in the opposite to said recess 99..Hence, the projection 105, upon coming into contact with the shoulder106 on the valve part 80, starts the movemeint of said latter valvepart. j Afterthe pawl 86 moves past thenrecess'99,

movement thereofis prevented lby` the means 98, and the lug 95 islield'locked by the pawl, so that the two valve parts 80 and82`inove YVtogether in either directionunderthe action of the turning means 88. Y

In the position ofrestvbetween operations, the valve being closed, theparts areas shown in Figs. 8, 9 and 10, the pawl 86 beingengaged withthe recess 99 and held against turning by the projection 95 engaging itstail 111, as shown in Fig. 10. The valve is thus lockedin its closedposition. Y

ports or.`

To open the valve, the operating means 88A part 82 is turned, movementof the valve part 80being temporarily prevented by the engagement of thepawl 86 in the recess 99. lVhen Vis turned in aclockwise direction. Thevalve the lug 95 enters the recess 96 in the'pawl 86, however, thelatter is free to turn and move out of the recess 99, as shown in Fig.11, so that the subsequent `turning or" the valve disk V82 opens thevalve. The tail 111 of tliepawl 86 in this position engages the part110, so that'the movement of the pawl is limited to the position shownin Fig. 11. At this time the projection 105V strikes the shoulder 106 onthe'valve part 80, causing this later to move,

and the two valve part-s 80 and 82` thereafter f iy move in unison withthe ports 29 and 80vinV V registryand the valve fully open. After thepawl 86 passes the'position of therecess 99, the means 33 may be turnedin either direction I without disengaging the lug 95 fromthe pawl 86,"and consequently with the ports 29 and 80 fullyv open. Thus the elementisrotated' through its prescribed arc and back.

During the return rotation, the element 10 is moved in counter-clockwisedirectionuntil the projection 101 on the valve part 80comes into contactwith the iiXed stop 102. This brings the pavvl 86 opposite the recess99,' and continued turning of the means 88 causes the valve part 82tocontinue its movement, thereby producing lrelative movement 'f'betweenfthe valve parts 82 and 80, and thereby lclosing the valve.'k Thismovement is permitted by the pawl 86' turning into the recess andreleasing the lug 95. The valve part 82 continues to Y ment ofthe Saidpart 82 in L position Where l move until the projection 105 comes intocontact with theshoulder 104 on the valve part 80,

vwhich is already held against movement by thecoaction of the Vstops101, 102. F low of mains open .untilthe end olfV thisvmovement and the'steam continues to blow from the nozzles against the'boiler vtubesduring this return rotation; the valve closed at the end `of thismovement, after the lelement has been brought to rest.` l Y In-either ofthe embodiments set forth itV is desirablethatthe element beprotatedeither continuously or intermittently, as maybe desired. Forcontinuousrotation the part 83Y Vmay be the usual sprocket Wheelengagedy by a chain, as indicated in Fig. '15.4 For intermittentrotationlwhichfor many practical reasons ispreterable) the part 88 maybe a ratchetiwheelmoved in one direction or the other'by a drivingpawhsuch, for example, ask

the mechanism set' forth in, our Patent No. 1,590,300. v v

f `Our invention, may be embodied inlother cleaner element, an enclosedvalve for con- 'ctmstructions,v since it isnot limited to theablethjereiiiitlito controlfthe supply o'licleiiiprecise embodiment setforth, but may be ing fluidto said unitL varied according to localconditions or any changed mode oit "operation desired modificationsbeing Within the scopeof the v -appended claims,

TWhat is claimed is l. A soot cleaner comprising a cleaner element, anenclosed valve for controlling admission of steam thereto5 said Valvemovable relatively to: the cleaner element and valve-operating meansengaging the valve and adapted through the valve to y lrotate theelement. 1

2; A soot cleaner comprisinga rotary trolling admission of steamthereto7 and valve-operating moans adapted to successively operate the`valve and rotate the element, said Valve and elementhaving abuttingstops coacting to transmit rotation from the valve to the element.

f t 3. A soot cleaner comprising a rotary tubular cleaner element, ahead: through which steam is supplied to the element, a valve in 4saidhead, a valve-seat member carried by iso 4..A soot cleaner comprising aI rotary' cleaner .element`r an enclosed Valve for con trollingadmission of steamthereto, and

Vx'falve-operating means adapted to successively operate the `valve androtate the element, With a lock engaging the valve to hold it openexcept inthe position of rest.

5L A soot cleaner comprising` a rotary tubularcleaner element, a headthrough which.

steam is supplied to the element, a valve in said head, a valve-seatmember carried by the element, and valvelope'rating means adapted tosuecessivley operate the valve and rotate the element, locking` meansengaging the Valve and seat member adapted to lock the valve in oneangular position and release it in other angular positions.` n

6. A cleaner comprising a rotary tubular cleaner element, a head throughwhich steam is supplied to the element,v a valve'in said head, valveoperating means for opening` said Valve, said means adapted to rotatethe ele-v ment when the valve is open with lockingmeans for locking' theValve in'its open posi# tion during` the rotation of the element, and

, means in theheadjcontrolling saidlocking,v

means to releasethe valve and permititto be closed in the inactiveposition of the element. Y

actuating vmember for 'said unit'including a stem coaxial With saidunity and a dis'lrvalve directly connected with said st'em and'movrotaryv suchsig-ned 01u- 1 names.

FREDEnioK'W;ninemsn.- -7

THEoD'oRE M. BRUBAoi'r. y

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